Serial Light & FTDI RX/TX pins backwards
Perednik Shai 2015-07-23 18:49:46 8628 Views3 Replies I've ordered a cheapduino and looking at the picture below the pinnouts on the FPC programmer are:
Code: Select allDTR
TXO
RXI
VCC
No Label
GND
Looking at both the Serial Light and FTDI breakouts, the pinnouts are the same:
Code: Select allDTR
TXO
RXI
VCC
No Label on the Serial Light /CTS on the FTDI
GND
Other FTDI programmer like SparkFun and ones on ebay, have their TX & RX pins reversed from DFRobot's
Code: Select allDTR
RXI
TXO
VCC
No Label
GND
If we follow the pinouts for the Serial Light and FPC programmer per the picture the connections are as follows:
Code: Select allFPC > Serial Light
DTR > DTR
TXO >TXO
RXI >RXI
VCC > VCC
No Label > No label
GND > GND
Therefore, either the labling on the breakout boards are backward, or connecting as shown in the image will not work as Serial connections are supposed to be TX>RX and RX>TX and not TX>TX & RX>RX as pictured.
Am I missing something here or are the products setup wrong?
the picture you listed in last comments were error showing up.
This is what I;ve found about USB serial light adapter.
The lable are not corresponding to the tx & rx.
This is an important detail, we should have a standard.
By the way, as a reward, we'd like put $5 in your account which you could use next time!
I will email you and related person about it later. 
Thanks again!
Leff FTDI - Arduino
5v - 5v
gnd- gnd
tx - rx
rx- tx
the tx/rx might designed for different purpose, so they would be different . If it doesn't work, exchange the sequence:
( not usual)
tx- tx
rx- rx
Leff Have you ever emailed to us about this difference? I've replied to you(if that's you)
Leff 